The plot is based on the account of an operational-investigative group that neutralizes German parachutist agents on the territory of Western Belarus. The novel’s main characters appear at a decisive moment in their lives, when they must carry out a difficult and important task placed under control by the Headquarters. The author traces their previous life path, deeply and subtly analyzing the traits of their character that manifest in this extraordinary situation. The detective development of the plot is combined with the depth of the moral and psychological conflict.